Veneer-press for manufacturers of woodworking material.



O. E. FRANCIS.

VENEER PRESS FOR MANUFACTURERS 0P WOODWORKING MATERIAL.

APPLICATION FILED APR. 17, 1912.

Patented Sept. 16, 1913.

COLUMBlA PLANDGRAPM c0.. WASHINGTON, nv c.

CHARLES E.

VENEER-PRESS FOB MANUFACTURERS 0F WOODWORKING- MATERIAL.-

To all whom it may concern Be'itk-nown that I, CHARLES E. a citizen of the United States, and a resident of Evanston, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Veneer- Presses for Manufacturers of Woodworking Material, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification. 1

My invention relates to devices for handling bundles of stock in veneerpresses, and consists in that certa'innovel construction and arrangement of parts to'be hereinafter particularly pointed out and claimed, whereby stock ready for the veneer press may be readily moved in and removed from. the

press without the necessity. of. using hoisting devices and contrivances of any nature.

In my Patent No. 1,016,258,0f February 6, 1912, I have illustrated a construction especially adapted for hydraulic presses, in which the platen of the press is raised against a fixed head and in which a track is provided across the movable platen, adapted to be raised and loweredby the movement of the platen. This construction is particularly adapted for hydraulic presses of the kind illustrated in said patent.

My present invention is designed to adapt the roller track plan to any description of veneer press, whether the pressure is applied from below or above and either for hand or power presses.

In the drawings, Figure 1 is a front elevation of my improved press with the stock ready to be removed from the press. Fig. 2

is an end elevationof thepress with the pressure on and the clamps fastened. Fig. 3 is a detail transverse section of one of the end supports for the cam shaft. Fig. 4 is a detail section of the cam shaft showing the intermediate supports. 7

The bed of the press is represented by 1, with side standards 2, 2, supporting the head 3, from which the power is applied by the screws 4, connecting through the screw heads 5. The bundle of stock 6 to be pressed by the top and bottom plates 7, 8, is made up of the desired number and size of pieces, and the stock is properly glued and placed on a truck for transporting to the press, the truck usually being provided with rollers upon which the bundle rests so that it can be readily removed to the press.

Specification of Letters Patent. AppIiation filed April 17, 1912. Serial No. 691,266.

FRANoIs,

Each end of the block 20,

Patented Sept. 16, 1913.

At the front and rear of the press, bolted to the bed 1 are the clips 9, 9, to receive and guide the movable brackets 10, 10, with the stems 11, 11, of .the brackets adapted to slide in the clips. The upper ends of the brackets are shaped to engage and loosely hold the roller frame made up of side plates 12, 12, in which are mounted the rollers 13. The lower ends of the brackets rest upon and are supported by cam disks 14, secured on the cam shaft 15, and the shaft is supported on each side of the cams by a bifurcated bearing 16 projecting from the plate 17, one for each cam. These plates are supported by bolts 18 secured to the bed and projecting through slots 19 in the plates 17, so as to allow for a vertical movement of the plates. the cam shaft has a bearing in mounted on a U-plate 21, which is secured to the bed by bolts 22, and these bolts project through slots 23 in the back of the plate, while the U-plates are in turn supported by powerful coiled springs 24, which are mounted on a stud 25 on the floor. These coiled springs are sufficiently powerful to normally support the weight of any bundle of stock that may beplaced in the press, yet sufficiently resilient to give under the pressure of the press when in use.

The construction of movable brackets, cam shafts and supports is provided for both the front and rear of the press, and at one end the cam shafts are provided with sprocket wheels 26, over which runs an endless sprocket chain 27. One of the cam shafts is provided with a hand lever 28, by means of which and the sprocket connections the two shafts are rocked to raise and lower the cams 14. The cams and brackets 10 are so proportioned and the height of the rollers 13 is such that when the cams 14 are raised, the top surface of the rollers will be slightly above the top surface of'the Lbeams 29, which are placed on the bed of the press to support the bundle of stock. Under these circumstances, the bundle can be rolled directly from the truck onto the press bed, and for convenience in receiving and delivering the bundle from the press, the roller frames 12 are sufficiently long to project beyond the bed as shown in Fig. 2. When the bundle of stock is thus located in proper position on the bed of the press, the proper number of I-beams 29 can be located underneath the bundle and a corresponding number of I- beams 30 are placed on top of the bundle underneath the screw heads 5, and the cam raises-the roller slides and takes the weight, 1

lifting the bundle and the lbeains '29 from 1 the bed of the press. The truck is then brought into proper position to j-receive the bundle, and the bundle is rolled onto the truok from the press.

In the eventthat the operator should have failed to lower the roller slides before applying the pressure to the press, the pres) sure would bend the cam shaft, or break the cams, and for this reason the cam shaft is; supported as heretofore described on the 1 coiled sprin s 24, andthe plates 17, 21, which provide the earin gs for-the ea-ni shaft, have E slotted engagement with the bed. The springs normally are suili-ciently "'powerfuli to support the weight of any bundle of} stock that may be placed in the press, and the purpose of the springs is to allow the roller slides to be subjected to the compressio'n power of the press without breaking or 1 the power of the press. I 4. In a veneer PIGSS, ElIBCGIHblIiQiZlOn with in'j uring the, connections.

Inasmuch as the construction'is such as to permit the action of the press itself to de' press the supporting slides or rollers by; reason of the coiled springs 24, for certain purposes it is not necessary to provide the camshaft and earns for raising and lowering the slides, and these parts may be fixed, with I the brackets inraised position; In this event, the springs themselves will operate; automaticallyunder the pressure, and as soonas this pressure is released the springs will raise the bundles from the bed. f

VV'hilel have illustrated a roller frame; and rollers for -'car-rying the bundles, of 5 course it will be understood that slides could be used instead of rollers. The press to which I have applied my invention I have designated as a veneer press, but it will be understood'that the invention is equally applicable to any press designed to apply and controlthe pressure on any desired material.-

Havlng thus descr bed my invent1on,vvhat" I claim "as new and desire to secureby Letters Patent, 1s:'

1. In a veneer press, the combination with the base otthe press of rollers with their upper "surface normallyabo've the level of the base to-sustain the Weight offthe stock,

and movable supports for the rollers ateach side of the press adapted to release the roll 1 'ers to 'allow the bundle ofstockto be compressed in the press. i a

2. In ayeneer press, thecombination with the base oi? the press,'and beams :tor sustaining the stock, of rollers-andmovable supports for the rollers ateach side of the press adapted to-*perin'it a position of the rollers above fa-nd 'b'elowfthe level of the beams. r

3. in a veneer press, thecom'bin-ation with.

the base of the press, of rollerswit h'their upper surfa ce normally above the level of the base, movable supports for the rollers, standards for the supports andupon which they are movable, with springs for sustaining the standards-of sufficient strength to carry the weight of a bundle-of veneered stock, and aclaptedtoxbe compressed under the base of the press, of rollers with their upper surface normally above the level of the base-movable supports tor the rollers,*a V

cam shaft with cams forraising andlower in-g'the supports to shift the weight of the stock from the rollers to the-bed of the press, with springs for supportingthe cam shaft to permit the depressionfof the shaft and its connections under the power of the Copies of this patent may be obtained for five cents each, by addressing the Commissioner or Patents, Washington, D. 6; 

